Electromagnetic actuator for organ valves



April 114, 1953 w. H. REISNER, JR 2,635,138

ELECTROMAGNETIC ACTUATOR FOR ORGAN VLVES Original Filed Feb. 3, 1947 2 SHEETS-SHEET l A TTU/QA/EV April 14, 1953 w. H. RElsNER, JR 2,635,138

ELECTROMAGNETIC ACTUATOR FOR ORGAN VALVES :frcs-.L5 7/07 Patented Apr. 14, 1953 ELECTROMAGNETIC ACTUATOR FOR ORGAN VALVES William H. Reisner, Jr., Hagerstown, Md., as-

signor to The W. H. Reisner Manufacturing Company, Inc., Hagerstown, Md., a corporation of Maryland Original application February 3, 1947, Serial No.

725,979. Divided and this application September 15, 1950, Serial No. 185,055

2 Claims. (Cl. F75- 336) invention relates broadly to organ valves and more particularly to an improved construction of multiple magnetic valve system for organs.

This application is a. division of my application Serial Numberl '125,979 filed February 3, 1947 for Eletromagnetic Operating Mechanism for Organ Valves, which is now abandoned.

One of the objects of my invention is to provide an improved construction of multiple magnetic valve system for organs which may be manufactured with great precision and uniformity on a mass production scale at relatively low cost. 1 Another object of my invention is to provide an improved construction of grounding means for establishing electrical connection between one end. ci a magnetic control winding and the grounded frame of a multiple magnetic valve system.. Still another object of my invention is to provide an improved arrangement of insulated terminal for the multiple magnetic winding of a multiple magnetic valve system.

Still another object of my invention is to provide an improved construction of lug member adapted to be welded to the frame of a multiple magnetic organ valve system for effecting individual adjustment of the spring tension on the armatures of a multiple magnetic valve system and at the same time serving as an electrical terminal forl the associated magnetic operating winding of the multiple magnetic valve system.

Still another object of my invention is to pro vide an improved construction of bearing and journalling means for a multiplicity of armatures in the frame structure of a multiple magnetic valve system.

Other and further objects of my invention reside in the improved construction of multiple magnetic organ valve control mechanism as set i'orth more fully in the specification hereinafter following by reference to the accompanying drawings in which:

Figure l is a side elevational view of the improved magnetic control valve structure of invention, the view showing a fragmentary portion of the pressure chamber of a reed operated organ and the application thereto of the multiple organ valve of' my invention; Fig. 2 is a vertical sectional view through the magnetic organ valve of my invention taken substantially on line 2-2 of Fig. 1; Fig. 3 is a longitudinal sectional view taken through the magnetic control valve of my invention with certain of the parts illustrated in side elevation and the direction of movement of the control armature illustrated by arrows; Fig. 4 is a front view of the magnetic frame of the multiple magnetic organ valve prior to assembly of the electromagnetic windings thereon; Fig. 5 is a rear view of the frame of the multiple magnetic organ valve of my invention prior to the assembly of the electromagnetic windings and adjustment springs thereon; Fig. 6 is a side elevational view of one of the completely assembled electromagnetic control windings employed on the magnetic cores of the multiple magnetic valve controlled system of my invention; Fig. 7 is a longitudinal sectional view taken through the electromagnetic control windings of Fig. 6 and particularly illustrating the improved construction of grounding means and the improved construction of terminal lug associated with the electromagnetic operating winding; Fig. 8 is a front elevational view of the improved grounding means associated with each of the electromagnetic control windings; Fig. 9 is an end view showing the assembly of the grounding means of Fig. 8 with respect to the electromagnetic operating winding of Figs. 6 and 7; Fig. l0 is an enlarged side elevational view illustrating the manner of assembling the magnetic core with respect to the magnetic frame of the multiple magnetic valve system and illustrating particularly the bearing and journalling means for the armatures of the multiple magnetic valve system; Fig. l1 is a cross-sectional View more clearly illustrating the manner of assembling the magnetic core with respect to the magnetic frame, the arrangement of the adjustable spring tensioning lug and electrical connector therefor and the bearing and joui-nailing structure for the armature system, the view being taken substantially on line l l-l l of Fig. Il and enlarged to the scale shown in Fig. l; Fig. l2 is a perspective view of the spring tensioning and electrical connection lug which is Welded to the frame of the multiple magnetic control system, the view being enlarged to more clearly illustrate the construction; Figs. 13, 14 and l5 show various modified forms of the contour or shape of the armature which I have found desirable in the efficient operation of the multiple magnetic valve system of my invention; Fig. 16 illustrates one of the production processes l have devised for assembling the magnetic core with respect to the magnetic frame by staking the en-:l of the core to the magnetic frame; Fig. 1'7 is a transverse sectional view taken substantially on line l-V of Fig. 16; Fig. 18 shows a modied form of rolling the end of the magnetic core over the magnetic bracket for speeding up the production process; Fig. 19 is a transverse sectional view taken substantially on line lili9 of Fig. 18; Fig. 20 shows a further modified form which may be employed in the production process in producing the structure of my invention by riveting the magnetic core to the magnetic frame; and Fig. 21 is a cross-sectional View taken substantially on line 2 l-2l of Fig. 20.

Referring to the drawings in more detail reference character l indicates the pressure chamber of an organ having ports 2 therein leading to the reed pressure box 3 having an outlet indicated at 4. The reed is indicated at mounted at one end on the reed supporting frame 6. h1 Fig. 2 I have shown the several reed pressure boxes 3 partitioned one from the other by means of partition members i for the independent control of the passage oi air therethrough under control of the electric valve action. The electric valve action of invention may be used for both vacuum and pressure arrangements, as in the conventional pipe and electronic organ systems. The illustration of my invention herein in assof ciation with a reed system is merely for the purpose of illustrating one application of the system of my invention. j v

The bracket for mounting the several electro.-

magnetic control systems of the multiple magnet of my invention is illustrated at 3 comprising a magnetic fra-me secured by screws to the pressure chamber i and extending at an obtuse angle with respect thereto on the side adjacent the organ ports 2. The bracket E is provided with a plurality of perforations iii therein which are struck out of the material forming the bracket 8 and across which the bearing wire i l is stretched. The bearing rwire li is fastened intermediate each of the perforations iii by means of the outstruck clamping jaws l2 and i4 which are formed directly from the material of the frame 3 and which are suiiiciently removed from the material of the bracket 8 to enable the bearing Wire Il to be clamped therein. The bearing Wire H extends beyond opposite ends of bracket 8 and is bent upon itself to form hook-shaped securing means at Ha and l lb iitting Within notches or grooves 8a and 3b in opposite ends of the frame 8. The hook-shaped ends or" the bearing Wire Il embraces the opposite ends of frame 8 by extending around the frame in the notches 8a and 8b. The bearing wire ii thus stretched provides a journalling means for the rockable armatures which I have illustrated at l5. Each rockable armature l5 has one end thereof extending through the perforation is and the other end projecting beyond the end of the magnetic core I6. The multiple magnet system includes a plurality of magnetic cores i6 secured at spaced l intervals along the magnetic frame 8 intermediate the slots il in the frame 8 and projecting on axes dii/erging away from the plane of the ports 2 with which the magnetic cores i6 are aligned and diverging away from the plane of the portion oi the rockable armature I5 extending through the perforation i@ when the armature is in deactivated position. The magnetic cores It are secured in suitable manner such as by way of the screws i8, the heads of which pass through Washer member i9 and through apertures in the T-shaped tongues 213 of the frame 8.

The T-shaped tongues 2@ have secured to the extremities thereoic the lugs 2i shown more particularly in i2. The lugs 2! are each provided with an arcuate shaped recessed end portion 2id and a co-extensive central lug portion Zib which is slotted at Etc and 2id and which is apertured at i2 le. The recessed end portion 2 la is so shaped that this end portion may be readily spot-Welded as represented at 2U and Zig in Fig. 5 to each of the tongues 2G of frame 8 Without interfering with the head of the securing screw i8. The co-extensive central lug portion 2lb of the lug 2l is sufliciently stili to insure the maintenance of the lug 2lb in the position in which it may be set. Accordingly the ccextensive portion 2lb of the lug serves as an adjusting means for the tension of tension spring 22, the end 22a or" which passes through apertures l21e in lug 2i and the end 22h of which passes through aperture a in the projecting end of armature E5 as shown. The slot Zic in lug 2l renders the lug 2i suiciently pliable to enable the lug to be adjusted to that position in which the desired spring tension is exerted upon the armature I 5 and provides a solder connection slot for the conductive arm 35D of the electrical connection 35 extending from magnet winding 2S.

The slotted end Eidof lug 2l permits an elec-,i trical connection to be readily soldered in the end of the lug.

The armature i5 is journalled upon the bearingY 'wire Il by the coaction of strip member 23 with:

the transverse groove lb in armature l5, the., strip member 2s extending over bearing wire Il and conforming in shape With the section of the Wire H when imbedded in groove l5b of the armaturerthe strip member 23 being secured adjacent its opposite ends by` means of rivets 24 and 25 which pass through armature i5. Thus armature i5 is free to rock about bearing Wire 1L being coniined pivotally with respect thereto on' the one side by transverse groove VE513 and on the` other side by shaped strip 2E. The end of the;

armature l5 is shaped in a very special mannen:

for eiciently employing the magnetic lines of' iiux Which emanate from the end of the mag-z netic core I6.

riihe magnetic armature l5 in association With the magnetic core I6 and the magnetic frame. 8 form a path for the magnetic lines of force threading said members substantially in. the

shape of a parallelogram. The said path'be-v comes shorter in effective length as the arcuate. structure 25e of the armature is displaced tov/ardA the magnetic core l. The closed loop for the: magnetic lines of force varies in effective length with thedisplacement of the magnetic armature l5. Rapid action of the magnetic operating mechanism is assured by virtue of the lovvlrelucf tance for the magnetic path which is established by the continuous magnetic circuit formed by the magnetic frame 8, the magnetic armature 15,. and the magnetic core- Iwhich tends to decrease in length vupon energization of magnetic winding: 2Q.. This rapid action is increased by reason of the shaped end of the armature structure as shown in Figs. 13, 14 and l5. I

The end of magnetic core I6 is provided with` an arcuate shaped face 16a formed on a radius having a center substantially beyond the end of the magnetic core secured by screw i8. The ar-`v mature |5 has a correspondingly shaped face |5c which is shaped to move in an arcuate path conforming With the contour of the arcuatelshaped face 16a of core IB. The terminus of thevarma-` ture face IEC is also shaped in a very special manner in order to obtain the maximum pulling force. from the magnetic flux emanating from the end of arcuate shaped face I Ba of core l5. i found that this terminus may be tapered to a point as represented at ld in Fig. 13;,or^ .n 1ay be, undercut to providefa pair of abruptly Vspaced I. have.,

tapered points as represented at I5e and I5f in Fig. 14, or may be provided with a pair of spaced points I5g and I5h as represented in Fig. 15 separated by a curved intermediate face represented at l5z'. Utilization of any one of these forms of termini in-association With the arcuate structure of the end of the armature at I5c in relation to the arcuate shaped face I6a of magnetic core I6 insures a rapid build up of the magnetic flux which threads the magnetic core I6, magnetic frame 8, and magnetic armature I5 to form a closed magnetic path for effecting an actuation of the valve structure with minimum inertia or delay after application of the exciting current to the operating winding of the magnetic valve system.

The armature I 5 carries a multiple layer valve structure 26 adjacent the end thereof constituted by alternately arranged relatively flexible felt portions 26a and 2Gb separated by the relatively a still intermediate portion 26o. The relatively flexible felt portion 2Gb is fastened by asuitable cement or other means to the end of the rivet 21 and spacer member 28 carried by armature I5 as'v shown. The relative angular adjustment permitted between the superimposed layers of the valve insure the conforming of the valve face with the port 2 in the pressure chamber I.

The electromagnetic operating system for the multiple valve structure consists of a multiplicity :a

winding 29 is threaded through the tubular rivet 33 and is soldered to the terminal lug 32 thus providing a readily accessible connecting terminal for one end of each of the operating windings 29. The other end of each operating winding 29 is brought out at the `opposite end of the mag-` netic structure and Wrapped around a projecting insulated lug 34a of the insulated end 34 of the magnet Winding structure. Intermediate the insulated end 34 and the flanged end of the tube 30 I provide a unique type of electrical connector shown more particularly in Fig. 8. The electrical connector consists of a conductive ring portion 35 having a pair of radially extending conductive arms 35a and 35h. The conductive arm 35a extends in intimate surface contact with the lug 34a of the insulated end 34 and the end of the magnet winding 29. which is brought out from the magnet winding 29 is freed of insulation and the wire wrapped around lug 34a and the radially extending conductive arm 35a as represented at 28a and a soldered electrical connection made with arm 35a. The coacting conductive arm 35h is bent as represented in Figs. l and 3 to a position in which a soldered electrical connection may be made to lug 2l as represented at 35e in Figs. l and 3. Thus a good electrical ground may be established and maintained between the end of the operating winding 29 and the solder lug 21d to which electrical connection is made to the control circuits. By reason of the spacing of the several electromagnets in the multiple magnetic frame structure the electrical connections to the several lugs 2l and to the several terminals 32 may be readily spaced and separated from each g3 other in writing the multiple magnet valve into the organ circuit.

In providing for mass production of the mag-.i netic structure of my invention I have evolved special means for securing the magnetic core I6 to the tongues 2U of the magnetic frame 8. I have shown the several methods in Figs. 16-21. In the construction shown in Figs. 16 and 17 the magnetic core I6 has the end I6d thereof reduced in section and passed through the aperture 20a in tongue 20 and the protruding end staked as represented at 36 by blows of a tool under a drop press for expanding' the end of the core into a keyed position with respect to the tongue 2U.

In the arrangement illustrated in Figs. 18 and I9 the protruding end of the core IBd is rolled over as represented at 31 to secure a confining peripheral edge for maintaining core I6 in posi-i tion with respect to tongue 20` In the arrangement illustrated in Figs. 20 and 21 the projecting end of core I6 at I6d is riveted over the tongue 20 as represented at 38 for thereby securing the magnetic core I5 with respect to the tongue 20.

I have found these methods of connection of the magnetic core IB to be superior to the screw connection illustrated in Figs. 10 and 1l.

The magnet windings 29 may be so proportioned that the windings may be directly connected in electronic control circuits in electronic types of organ systems.

The diverging relation of the electromagnetic core I 5 with respect to the plane of organ ports 2 and the planes of the portions of armatures I5 that extend through perforations I0, with the armatures in deactivated position, provide desirable space for installation, maintenance and replacement of the valve ports and afford a wide displacement path for the magnetic armatures I5 which swing from minimum to maximum magnetic relation with the cores I5. The tips of armatures, such as I 5d, are displaced by reason of the wide angular displacement afforded by the mounting of the cores I6 at a diverging angle adjacent the ports 2, from one edge of the arcuate face la. of the core I6 to the opposite edge thereof to secure maximum pulling force from the magnetic flux emanating from the end faces I6aof cores I6.

I have found the structure of the multiple valve system of my invention highly eihcient and practical in its use and while I have disclosed the structure in certain of its preferred embodiments I realize that modications may be made and I intend. no limitations upon my invention other than. may be imposed by the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States is as follows:

l. An electromagnetic actuator for organ valves comprising a frame structure forming a supporting bracket for a multiplicity of electromagnetic actuating devices, a plurality of magnetic core members secured in spaced positions along said supporting bracket, said supporting bracket being perforated above each of said magnetic core members, an armature member extending through each of the perforations in said supporting bracket, a bearing wire stretched across said supporting bracket transversely to the perforations therein and hooked around opposite edges of the extreme opposite limits of said supporting bracket, outstruck lugs extending from said supporting bracket intermediate the perforations therein and engaging said bearing wire, said armature members being pivotally 7 mounte'donfsaid bearing wire 'andi' selectively operative by electromagnetic excitation of. the associated magnetic core members. Y 2. An electromagnetic actuator for. organ valves comprising a frame structure forming a supporting. bracket for a multiplicity of electromagnetic actuating devices, a Iplurality of magnetic core members secured in spaced positions along said supporting bracket, said supporting bracket being perforated above each of said magnetic core members, an armature member extending. through each of the perforations in said supporting bracket, a .bearing Wire stretched acrosssaid supporting bracket transversely to the perforations therein, the opposite edges of said supporting bracket being grooved to receive the ends of said bearing wire, said bearing Wire being hooked around the grooves inA said support ing bracket, lug members` outstruck from said bracket intermediate thefperforations therein and engaging said bearing Wire said armature members being journalledfon said bearing Wire and projecting through the respective perfora- 8 tions in'v said bracket and selectively operative by' electromagnetic excitation o 'the associated magnetic core members.

WILLIAM H. REISNER, J R.

References Cited the le of this patent UNITED STATES PATENTS 

